How does it work? Easy. Hack Wifi Password guesses common WiFi passwords one by one – drawing these guesses from the 500 most popular WiFi passwords in the world – until it finds one that works. If the WiFi network password doesn't match any of these guesses, nothing happens, except that you'll have wasted a lot of time.
The first guesses are, of course, the most common ones: 'password,' 'pass,' '123456,' '1234,' and so on. Luckily, not many people still use these passwords on their WiFi networks.
Hack Wifi Password is a mediocre hacking application that often isn't successful. Nevertheless, it's an option, and it might work from time to time.